[#mp_units-Reference]
= xref:mp_units.adoc[mp_units]::Reference
:relfileprefix: ../
:mrdocs:

A concept matching all references in the library.

== Synopsis

Declared in `<mp‐units/framework/reference_concepts.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<typename T>
concept Reference = MP_UNITS_ASSOCIATED_UNIT_T(T) || is_specialization_of<T, reference>;
----

== Description

Satisfied by all specializations of `reference.`


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